High End Systems AXON user manual Keystone Correction Parameters, Left Y

Original Content

Bottom Left X

CHAPTER 11

Global Functions

Keystone Correction Parameters

When you output an image from a		Top Left X
projector at an angle, the image may
appear skewed. Eight Keystone	Top
parameters adjust the image shape
	Left Y
and compensate for this effect. You
can control each of the four corners
of the graphics output to reshape
your image to a form that projects	Bottom
correctly.	Left Y

Default DMX Value: 0 = no keystone correction has been

applied. Each corner has an x and a y value that adjust and correct scale of

the projection from any corner toward the image center on that axis.

Top Right X

Bottom Right X

Top

Right Y

Bottom

Right Y

Keystone Top Left X DMX value = 85 Keystone Top Left Y DMX value = 85 Keystone Top Right X DMX value = 85 Keystone Top Right Y DMX value = 85

Keystone Top Right Y DMX value = 170

All other Keystone parameter DMX values = 255

Setting all Keystone X and Y parameters DMX values to zero will place the four corners of the image at the four corners of the projector output. Adjusting keystone x values toward 255 (100%) moves the respective corner x positions horizontally toward the center of that image edge. Adjusting keystone y values toward 255 (100%) causes the respective corner y positions to be moved vertically toward the center of that edge of the image.

Tip: These parameters can also be used to create interesting skewing as a design effect.

Note: DL.3 fixtures have vertical lens shift capability that provides additional keystone control. Engage lens shift with your DMX console in the Control Parameter of the Motion Control fixture type.

98 Axon Media Server User Manual